The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
There are many carbon patterns, but this one is tiny.
Source Designova
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
A comeback for you: the popular Escheresque, now in black.
Source Patten
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
Used a cherry by doctormo to make this seamless pattern
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss